PTFE Seated Lug Knife Gate Valve

When the knife gate valve is closed, the sealing surface can be sealed only by the pressure of the medium, that is, the seal surface of the gate is pressed to the seat of the other side by the pressure of the medium, which is self sealing. Most of the gate valves are forced to seal, that is, when the valve is closed, the gate must be pressed to the seat by external force to ensure the density. The seal of the cover. This type of valve should be installed vertically in the pipe.

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Product Description

When the knife gate valve is closed, the sealing surface can be sealed only by the pressure of the medium, that is, the seal surface of the gate is pressed to the seat of the other side by the pressure of the medium, which is self sealing. Most of the gate valves are forced to seal, that is, when the valve is closed, the gate must be pressed to the seat by external force to ensure the density. The seal of the cover. This type of valve should be installed vertically in the pipe.

 

Technical Specification
Normal SizeRange: 2"-60"
Normal Pressure Rating: PN10~PN16, CLASS150
Material: GG25,GG40,WCB, CF8,CF8M,CF3,CF3M
Operation: Handwheel, Pneumatic, Electric, Chainwheel. Lever

Seat: EPDM, Viton, Metal, PTFE, NBR

Temperature Range: -29°C~150Degree C


Standards compliance

Design and Manufacture: GB/T12237

Face to face(end to end): GB/T15188.2

Flanged connection: ANSI B16.5, GB/T 9113

Test and inspection: API 598, GB/T 13927

 

 

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